Water closet construction

ABSTRACT

For a security type or vandal proof type water closet installation, a shroud-carrier anchored in a wall to define a through-wall opening receiving a flush tank-trap unit connecting a wall-hung bowl fixture unit to a soil line; both units being carrier-supported by concealed, shroud-engaging rearward fixture studs. The bowl unit is a single casting having a simple bottom back outlet and, beneath a seat-defining top rim formation, to flush the bowl sides, a groove channeling water from a diverter nozzle secured in the upper bowl back region; the bowl outlet and diverter nozzle being gasketed to the trap inlet and to a diverter tube outlet of the tank. Blow out and syphon jet tanktrap unit forms are described, with optional lateral plugged clean out or lavatory connection openings. The tank and trap with connection points for controlled water supply, bowl and soil line are provided basically in an integral casting, with, however, a separate tank cover; and also disclosed is a tank-trap unit with a tank open front closed by the bowl back gasketed thereto.

United States Patent [72] Inventors Richard D. Dirks;

George J. Flegel, Michigan City; Roger L. Mielbeck, La Porte, 1nd.; Lewis 11. Polster, Shaker Heights, Ohio; Nicholas G. Scheuer, Michigan City, Ind. [21] Appl. No. 843,014 [22] Filed July 18, 1969 [45] Patented Apr. 27, 1971 [73] Assignee Josam Manufacturing Co.

[54] WATER CLOSET CONSTRUCTION 35 Claims, 6 Drawing Figs. [52] US. Cl 4/14, 4/252 [51] Int. Cl ..E03d ll/02, E03d 1 1/18 [50] Field ofSearch 4/10, 15, 17, 2,18, 3, 20, 8, 26, 36, 42, 44, 47, 69, 70, 71, 73, 89, 90, 252, 92

[56] References Cited UNITED STATES PATENTS 1,253,506 l/ 1918 Madden 4/70X 1,947,439 2/1934 Crane et a1. 4/69 1,948,970 2/ 1934 Meyer 4/70X 1,957,831 5/1934 Hague et al... 4/252 1,996,693 4/ 1935 Wallace 4/252 2,860,348 11/1958 McClenahan 4/3 2,932,037 4/1960 Manas... 4/252 3,124,808 3/ 1964 Tiller 4/69X 3,124,809 3/1964 Schmid 4/26 Primary Examiner-William F. O'Dea Assistant Examiner-Henry K. Artis A!t0rney-Ely, Golrick and Flynn ABSTRACT: For a security type or vandal proof type water closet installation, a shroud-carrier anchored in a wall to define a through-wall opening receiving a flush tank-trap unit connecting a wall-hung bowl fixture unit to a soil line; both units being carrier-supported by concealed, shroud-engaging rearward fixture studs. The bowl unit is a single casting having a simple bottom back outlet and, beneath a seat-defining top rim formation, to flush the bowl sides, a groove channeling water from a diverter nozzle secured in the upper bowl back region; the bowl outlet and diverter nozzle being gasketed to the trap inlet and to a diverter tube outlet of the tank. Blow out and syphon jet tank-trap unit forms are described, with 0ptional lateral plugged clean out or lavatory connection openings. The tank and trap with connection points for controlled water supply, bowl and soil line are provided basically in an integral casting, with, however, a separate tank cover; and also disclosed is a tank-trap unit with a tank open from closed by the bowl back gasketed thereto.

P NIEU APR27|97I 3,576,038

FIGJ

INVENTORS RICHARD D. DIRKS GEORGE J. FLEGEL ROGER L. MIELBECK LEWIS H. POLSTER NICHOLAS G. SCHEUER Jig 19M 7 ATTORN WATER GLOSET CONSTRUCTION Particularly for prisons and other custodial institutions for security reasons, but also for public or other toilet facilities which may be subject to vandalism, a water closet installation advantageously is rugged, has a minimum number of parts exposed to the toilet room space and especially has the bowl securing and mounting elements inaccessible to removal or tampering. Also it is desirable and advantageous for space conservation in the place where the toilet is installed, that the portion of the installation in the room be kept to a minimum size while yet providing a suitable size bowl and seat arrangement; and further it is preferable that for sanitary and cleaning purposes that the bowl be mounted off the floor.

Through the prior art has proposed simplified bowl constructions, even off-the-floor or wall-hung installations where trap construction was provided in a separate structure located in or behind the wall, in some instances serving as a carrier or as a soil line fitting, such proposals have labored under certain disadvantages in complexity of the behind-the-wall structure or of installation procedures, comparatively large size, accessibility of various mounting or functional elements to tampering or removal, or other disadvantages.

The general object and purpose of the present invention is to provide a water closet construction affording one or more of the aforementioned desirable characteristics, and minimizing or obviating various disadvantages of prior art constructions. A further object is to provide a construction attaining certain advantages by segregating certain functional structures in distinct major components in a manner facilitating overall manufacture and also installation for the purposes intended.

The present invention proposes to attain such advantages and objects particularly in a blowout or syphon jet by providing (apart from soil line fittings) a basically three-component construction comprising a shroud carrier assembly incorporated into the wall, a flushing reservoir tank and trap unit for connection to a flush valve controlled water supply, and a simplified bowl fixture, which are readily assembled and installed in and to the wall and to the soil line; with the three such major components fabricated in durable low cost construction by modern fabricating techniques.

Though for purposes of description the environment of installation will be considered as involving poured concrete floor and wall construction, certain aspects of the invention are useful in other environments such as block, steel or framed wall constructions. Also though an off-the-fioor type bowl is disclosed, certain features of the construction are also advantageous where the bowl in great part is supported on the floor.

i-lerein, unless context otherwise requires, the phrase behind the wall is to be understood as meaning behind the front wall surface of the room or space in which an installation is made.

In the water closet construction as hereinafter disclosed and discussed in detail, the trap legs of the water seal structure and the flushing reservoir tank are separate from the bowl, thereby simplifying the bowl fabrication and construction and minimizing the bowl areas required to be finished and porcelainized; such tank and trap structure being provided in an integral unit preferably integrally cast, which unit is disposed behind the wall thereby minimizing the space occupied by the water closet outwardly from the wall and further concealing much of the installation.

in the specifically disclosed combination, a shroud carrier a$embly adapted in form to be embedded and anchored in a poured concrete wall then receives the flushing reservoir tank and trap unit, the latter connected to a flush valve controlled water supply and to a soil line as in a chase space behind the wall; while a simplified bowl having a back in eschuteonlike form and manner totally overlaying and concealing the unit and front end of the shroud. The bowl has a flushing water inlet and a bottom waste outlet making gasket sealed connections to the unit, as it is held in place by studs projecting rearwardly from the back of the bowl for bolted engagement with lateral lugs of the unit and within the shroud carrier. Thus the means securing the bowl to the wall and to the unit are totally concealed and inaccessible from the front face of the wall thereby conducing to security and vandal proofing of the total installation.

Though in this outlined arrangement the total weight of the bowl is borne by the bowl mounting studs, advantageous features of the construction, hereinafter disclosed in detail for such a wall-hung bowl and off-the-floor construction, are also useful where for one reason or another the bowl is desired to have a base bearing on the floor to take up most of the weight of the bowl and the user, rather than requiring this loading to be borne entirely by the aforementioned studs.

As a further advantageous feature the tank and trap unit may be provided at a location in the outlet region with lateral openings accessible from behind the wall to be used optionally as plug cleanout openings, as points for connections of other sanitary fixtures or devices such as lavatories, or for a vent.

In addition to the aforementioned objects and advantages, others will appear from the following description and the drawings wherein:

FIG. 1 is a side elevation of a blowout form of the water closet assembly as installed in a concrete poured wall shown in section, showing further the connection of the assembly to an adjustable fitting of a horizontal soil line;

FIG. 2 is a vertical longitudinal section-throughthe principal components of the water closet construction in the environment of FIG. 1;

FIG. 3 is a front view of the assembly, shown partially in elevation and partially broken away;

FIG. 4 is a view similar to flG. 2 but showing a syphon jet form in the flushing reservoir tank and trap unit;

FIG. 5 is a fragmentary detail of a diverter nozzle construction for the bowl flushing water inlet; and

FIG. 6 is a fragmentary vertical section showing a modification of the tank and trap unit and a cooperating modified portion of the bowl back.

The major components of the embodiments of the invention shown in the drawings may be considered to be a toilet bowl fixture B; a flushing water reservoir tank and trap unit U (shown in blowout form in FIGS. 1 and 2, in a syphon jet form in FIG. 4); and a shroud carrier C secured in the poured concrete wall Y, and receiving the major portion of the unit U, to which carrier the bowl fixture B and unit U are secured in the manner hereinafter described.

It is observed that the bowl fixture, rather than having as it may a floor supported base, is a wall-hung type providing clearance between the bowl and the floor designated X to facilitate maintaining a sanitary floor. The flushing water is supplied to the unit U through an air-gapped flush valve controlled water supply pipe W in chase space behind the back face of the wall. To a known type of adjustable horizontal soil line fitting F having a vent pipe V, and a vertically elongated lateral bowl discharge receiving branch covered by a gasketed, vertically adjustably bolted on face plate P, the final discharge point of the unit U is connected through a horizontally adjustable running threaded (rather than taper threaded) bushing D threaded into the face plate and in turn threaded onto a threaded outlet extension portion 33-33a of the unit U, and appropriately sealed by joint compounds or by gasket locking nuts as commonly used.

The shroud carrier C, in form symmetrical about a vertical longitudinal center plane of the installation, provides a hollow frame 11 defining a through-the-wall space adapted to receive the unit U, externally projecting anchoring elements 12 adapted to be anchored to or embedded in the wall and thereby secure the carrier to surrounding wall construction, and lateral internal anchoring elements 13 to which are secured the unit U and the bowl B in the manner hereinafter described. Though the carrier C may be fabricated in various forms for example, as an integral casting, in the drawings (see FIG. 3 particularly) it is shown as comprised of flat metal stock formed and welded into closed frame ll, and having, us

elements 12 embedded in the concrete, lateral projections such as thread rods or studs nut-secured to the frame; and for the internal anchoring elements, angle iron lengths 13 on each side appropriately apertured to serve as lugs for the hereinafter described bowl securing studs 15; which angle elements l3 may be simply welded to the frame, or secured on the inner ends of the rods 12 either by nuts or by welding.

The construction of carrier C should be of such rigidity (as aided by an angle element welded across the frame bottom) as to ensure, specially in shipping and preinstallation handling, maintenance of the apertures in the elements 13 in appropriate relative positions corresponding to the location of mounting stud elements 15 threaded into blind bottom tapped holes on the back of the bowl. The studs 15 extend through corresponding apertured or horizontally slotted lateral lugs 16 cast on the unit U, then the elements 13 to be secured at 17 by nuts and applied from the rear of the wall.

The form of bowl fixture B is adapted to facilitating fabrication, for example modem cast iron foundry techniques with subsequent application on the visible exterior surfaces and the interior water wetted surfaces of porcelain, or if desired durable plastic coatings such as epoxy resin coatings. The bowl top opening is defined by a circumferentially continuous inwardly projecting lip or rim formation 21 suitably curved and contoured to form a seat for the user, with an under surface 210 running generally horizontally continuous flushing water channeling groove 22, from which the bowl interior side surface sweeps first generally sharply downwardly and then inwardly to fonn a continuously rearwardly downwardly sloping bottom channeling water towards and through a rear discharge outlet formation 24 gasketed at the back of the bowl by a gasket 25 to the waste inlet of the U as hereinafter described.

Centrally located in the back or rear of the groove 22, a flushing water inlet generally designated 26 is sealed by gasketed means 27 at the bowl back to a flushing water outlet of the tank U; the flushing water inlet being here provided with a diverter noule structure 28. The nozzle (see FIG. 5) comprises a horizontally extended tube open at both ends and longitudinally slotted along its bottom to direct flushing water respectively around the channel on both sides towards the front of the bowl and directly downwardly over the rear of the bowl interior surface to ensure a cleansing or washing of its entire interior surface 23. The nozzle is mounted and supplied through a central nipple or tubular steam 28a extending rearwardly through the back of the bowl, a sealing gasket 28b and then a washer and nut 28c threaded thereon, the stem preferably projecting through the nut 280 to support a further sealing gasket or washer 28f engaged between the nut and a front surface of a flushing water outlet formation 44 of the unit U.

The integral vertical back of the bowl includes continuous wallwardly curved flange areas extending at 20a downwardly below the outlet 24, the 20b to both sides of the major portion of the lower bowl construction, and also as an antisplash portion 200 upwardly above the rim 2]. The back, thus assuming an eschuteonlike form, is at least proximate to, but preferably bearing upon, the wall face over a region surrounding peripherally and entirely covering the shroud carrier; thus sewing both esthetic and sanitary purposes, and particularly rendering the mounting and securing structure of the installation inaccessible to anyone in the front or user space of the installation.

The structure as thus far described is common to both the blowout form of FIGS. 1 and 2 and the syphon jet form of FIG. 4.

The flushing reservoir tank and trap unit. a single integral casting, specifically represented in FIGS. I and 2 as a blowout form, provides for the trap portion an ascending leg or conduit 31 leading from a front face inlet formation 32 upwardly and rearwardly to merge into a short horizontal rearward extension 33 affording a discharge outlet opening externally straight the internal and external threads in the bushing of like pitch, a horizontal bushing adjustment is possible.

The level of the bottom of the circular cross section of the outlet opening through 33, of course, determines the static level (indicated at H) of the water ultimately retained in the bowl.

On each side of the outlet extension, at a point accessible from the chase space, there is a lateral opening 34 shown in the drawings as closed by a threaded plug, which openings may serve optionally as cleanouts or points for attachment of an atmospheric vent or for connection of other sanitary fixtures to be drained in the same environment such as lavatories.

At the front face of the casting unit the mouth or waste inlet opening 32 of the ascending leg is slightly female beveled generally complementary to a beveled slightly projecting external back formation for the bowl outlet 24 to facilitate and ensure good compression sealing by the gasket 25 under the force applied by the mounting studs 15 and nuts 17.

Above and integral with the trap leg 31, the casting unit U includes the flushing tank reservoir portion, the space of which is designated by the reference numeral 36, here defined by integral rear, side and front wall portions 37a, 37b, 37c respectively which run downwardly and merge at and with the metal of the trap forming part of the tank bottom; the casting here for casting fabrication purposes having the tank top side open, to be covered by a top plate 38 thereto sealed by gasket 38a and secured by bolts 39 through unit lugs 37f threaded into top lugs 38c.

In the tank upper region there is provided a somewhat thickened threaded apertured flushing water inlet formation 41 for connection of the flush valve controlled water supply piping W, here located in the tank back wall and receiving a water supply elbow fitting 42. The flushing tank has further a rim flushing water outlet represented by apertured boss formation 44 through the front wall 37c located in the upper half of the tank, with aperture coincident with the bowl flushing inlet; preferably with the outer mouth of the aperture at 44 somewhat enlarged to receive with clearance the projecting end of the previously described nozzle stern 28a. Preferably a flushing diverter tube 45, dependent from an elbow 45a threaded into the inner end of the aperture formation 44, extends downwardly toward the tank bottom region, to minimize noise, by eliminating tank air discharge through nozzle 28, as would occur, for example, in FIG. 6 without the tube 45. If desired an air relief tube 46 may be provided extending upwardly into the tank top region in the manner shown in FIG. 4, with bottom end opening to passage 48 to promote tank venting through opening 49 to the trap.

An outlet passage 48 is integrally cast at the bottommost tank region for water to be directed under pressure to one or more water jetting openings proximate to the inlet 32 and aimed generally upwardly and rearwardly into trap leg 31 for inducing evacuation of the normally retained body of water and its waste contents from the bowl into the soil line. Though as shown in FIG. 6 only the opening at 49 is usually sufficient, in FIG. 2 two openings appear, an upper opening 49 in immediate communication with the passage 48 and further a similar lower opening 50; the latter here shown in communication with the outlet passage 48 by means of an integrally cast semicircumferentially extending passage 51 formed externally on the ascending leg, in preference to the alternative of providing bores from the exterior into passage 48 and to the jet formation 50 connected by separate externally applied tubing, brazed in place or held by appropriate thread connections.

With this arrangement upon flush valve actuation, where water enters the tank 36 through W under pressure tending to fill the tank, the air is either vented to the trap where an air relief is provided or is compressed in the top region after some initial venting. In either event as the tank fills there is caused a jetting action discharge of water through openings 49, 50 by threaded at 330 to be engaged in the bushing D; so that with the typical blowout action, to induce evacuation of the bowl contents carried up 31 and out over the level of the extension 33 into the soil line fitting F; water also being diverted through the flushing inlet to the bowl flushing channel for cleansing the bowl interior surface. Thereafter upon flushing valve cutoff of the pressurized supply to the tank the water yet in the tank drains downwardly into the trap and bowl to ensure restoration of the normal fill in the bowl and the trap seal.

1n the syphon jet construction shown in FIG. 4 similar elements or portions are indicated by reference numerals and characters similar to those already used for the blowout type or with respect to FIGS. l3. The carrier shroud and bowl components are essentially identical to what has been described and so also the major portions of the flushing reservoir tank and trap unit U; the latter, however, being modified in the discharge outlet positioning and back region by disposing the outlet opening end extension 33 with associated openings 34 at a location at or slightly below the level of the mouth or inlet opening 32 for the ascending trap leg and by inclusion of a downward syphon leg 54 between the outlet in 33 and the upper end of the ascending leg.

in H0. 6 there is shown in fragmentary vertical section a modification of the casting for unit U, wherein the top of the tank is closed by an integral wall 37: but for coring purposes the front face of the tank portion, rather than the top, is open. In this case the front face of the unit is also open at the region of the passage 48m to jet opening 49, while the back of the bowl is modified to provide an integral bowl portion 61 forming a closure for the tank portion and for said passage, appropriate gasketing 62 being provided circumferentially about the tank opening, along the margin of the passage and about the unit inlet mouth 32.

In both the blowout and syphon jet constructions, it can be seen that similar assembly procedures may be used. As the wall is constructed the carrier shroud assembly C is precisely located in the required water closet position being either held in appropriate forming to be cast in place as the concrete wall is poured, or. incorporated as wall construction proceeds where the wall is framed or is layed up out of concrete block or steel. Then after the rough plumbing installation is completed for the soil line and flush water supply, the reservoir tank and trap unit U is inserted in to the wall-incorporated carrier C from the front, and therein temporarily nut and bolt secured between the unit lugs 16 and the carrier lugs or elements l3. Thereafter the tank-trap outlet 33 is con nected to the soil line fitting by the bushing D threaded onto the extension 33 and into the adjustable face plate P of the fitting, with appropriate thread sealing compound or locking nut and gasket means; and with the face plate finally bolted into gasket sealed relation on the fitting body. Vertical adjustment and some degree of lateral adjustment is available through bolt-and-slot connection of the face plate P on the fitting F and some lateral adjustment also by the slotted character of the unit lugs 16; while fore and aft adjustment is afforded through the running thread connections at the bushing D. The water supply connection at W is also made. When the bowl is finally to be mounted, the temporary bolts having been removed, the bowl, with its mounting studs and diverter nozzle 28 and gaskets in place, is brought into position against the wall with the mounting studs extending through the unit lugs 16 and the elements 13, and the flushing inlet gaskets and the bowl outlet gasket being captured between the formations to be sealed thereby. Then by washers and nuts applied at 17 to studs 15 from the backside of the wall, a joint securing and mounting of bowl and tank reservoir unit to the carrier is attained, thereby also applying sealing compression to the gaskets.

We claim:

2. For a vandal-proof or security type installation of water closet drained by a soil line behind a wall, the combination including:

a bowl having an outlet opening from the bowl bottom region directly through the bowl back and a flushing water inlet through the top region of the bowl back;

a flushing reservoir tank and trap unit integrally comprising an ascending trap leg with a bottom inlet end opening at the lower front region of the unit,

a discharge opening through an integral discharge connection at the back of the unit for a soil line with the upper end of the ascending leg in discharge communication with said discharge opening,

a tank over said ascending trap leg,

a fonnation providing a water jetting opening into the ascending leg proximate to the bottom inlet end thereof and aimed generally in the upward direction of the leg for directing water into water standing in the leg to induce evacuation from the bowl up the leg, and

a water supply connection formation into the tank for connection to a flush valve controlled water supply;

means connecting said tank to the water jetting opening;

means sealing said bowl outlet to the trap leg inlet end openmeans connecting said flushing water inlet in water communicating relation to said tank; and

means providing a top wall for said tank.

2. The combination of claim 1, with the means connecting the tank to the water jetting opening comprising a passage cast integrally in said unit from the tank to the jetting opening.

3. The combination of claim 1, wherein said unit is cast with the tank open at the top, and a separate said top wall is gasketed and secured on the top of the unit.

4. The combination of claim 3 including a front wall portion of said tank integral with said unit having an apertured formation in its top region and a gasket interposed between said apertured formation and the flushing water inlet region of the bowl back, as the means connecting the tank and flushing water inlet.

5. The combination of claim 4, including a flushing water diverter tube within the tank connected to said apertured formation providing a water passage from its bottom end near the bottom region of the tank to said flushing water inlet.

6. The combination of claim 5 including an air relief within the tank connecting the top region of the tank to said trap leg.

7. The combination of claim 1, wherein the last said means comprises an upper transverse wall portion integral with said unit and wherein the tank front region is open; the back of said bowl unit being gasketed to the periphery of the open front region of the tank to serve as a tank front wall.

8. The combination of claim 7, wherein to provide the said means connecting the tank to the water jetting opening, the front face of said unit includes an integrally formed forwardly open channel running from the bottom region of said tank to communicate with said water jetting opening, and the back of said bowl is gasketed to said channel.

9. The combination of claim 1, wherein said ascending leg slants rearwardly upwardly to integrally merge into a horizontal rearward extension affording said integral discharge connection whereby said combination is adapted to function as a blowout type bowl installation.

10. The combination of claim 9, with said rearward extension threaded for connection by threaded means to said soil line.

11. The combination of claim 10, wherein said rearward extension is provided with a lateral opening optionally useable as a plugged cleanout or as a connection for drainage of other sanitary fixtures.

12. The combination of claim 1, wherein:

the upper end of said ascending leg integrally merges through a bend into a descending leg,

said descending leg in turn integrally merging through a bend into a horizontal rearward extension affording said integral discharge connection, whereby said combination is adapted to serve as a syphon jet type bowl installation.

13. The combination of claim 12 with said rearward extension threaded for connection by threaded means to said soil line.

14. The combination of claim l3 wherein said rearward extension is provided with a lateral opening optionally useable as a plugged cleanout or as a connection for drainage of other sanitary fixtures.

through and secured sealed to the bowl back.

fasteners comprise respective studs threadedly engaged in tapped said formations and clamping nuts on the respective studs bearing on said elements.

15. The combination of claim 1 wherein:

the top opening of the bowl is rimmed by a substantially continuous circumferential inward lip,

the bowl interior surface ascending toward said lip terminates at a substantially circumferentially continuous 5 flushing water distributing channel beneath said lip; and

said flushing water inlet opens through the bowl back into a diverter nozzle centrally disposed in the rear portion of said channel directing water both directly downwardly over a back portion of the bowl interior and bilaterally into said channel to be distributed over the remaining portion of the bowl interior surface. 16. The combination of claim wherein said flush water inlet includes a tubular inlet stem for said nozzle projecting 5 17. The combination of claim 16 wherein said unit is pro- 18. The combination of claim 17, further including a shroud carrier adapted to be incorporated in a building wall on and through which the said bowl is to be installed and connected;

said shroud carrier comprising:

a rigid frame of size to receive therein said tank and trap unit with the front face of the unit disposed proximate to the front face of the wall,

externally projecting anchoring elements engageable with surrounding wall structure for anchoring of the shroud carrier, and

internally projecting elements to receive said studs projecting through the lateral lugs of said unit; whereby, with securing nuts on said studs, said bowl and unit are secured to each other and to the shroud carrier and by the latter to said wall.

19. The combination of claim 1, further including a shroud carrier adapted to be incorporated in a building wall on and through which the said bowl is to be installed and connected to a soil line;

said bowl having a plurality of mounting fastener engaging formations on the back face thereof;

said unit having projecting lugs each adapted to receive therethrough a respective said fastener,

said shroud carrier comprising a rigid frame of size to receive therein said tank and trap unit with the front face of the unit disposed proximate to the front face of the wall,

externally projecting elements engageable with surrounding wall structure for securement of the shroud carrier and integrally projecting apertured elements to receive a respective said fastener projecting through a respective said lug;

and mounting-fasteners engaging said bowl formations,

lugs and elements whereby said bowl and unit are secured to each other and to the shroud carrier and by the latter to said wall.

20. The combination of claim 19, wherein said mounting 21. For use in a compact water closet installation served by a soil line behind a closet mounting wall and wherein there is to be used a water closet bowl fixture lacking both trap and flushing reservoir structures,

a formation providing a water jetting opening into the ascending leg proximate to the bottom inlet end and aimed generally in the ascending direction of the leg for directing a bowl evacuation-inducin g water jet into water standing in the leg, and

a supply connection inlet formation into the tank for connection to a flush water supply;

said unit further including means connecting said tank to said water jetting opening, a flushing water outlet from said tank through the front of said unit adapted for a water communicating connection at the back of said bowl fixture to supply flushing water to a flushing rim in the bowl, and

means providing a top wall for said tank.

22. The unit of claim 21, with the means connecting the tank to the water jetting opening comprising a passage from the tank to the jetting opening cast integrally in said unit.

23. The unit of claim 21, wherein said unit is cast with the tank open at the top, and said top wall is provided by a gasketed cover secured on the top of the unit.

24. The unit of claim 23 including a front wall portion of said tank integral with said unit having an apertured formation in its top region as said flushing water outlet.

25. The unit of claim 24, including within the tank a flushing water diverter tube connected to said apertured formation providing a water passage from the bottom region of the tank to said flushing water outlet.

26. The unit of claim 25 including an air vent tube within the tank connecting the top region of the tank to said trap leg.

27. The unit of claim 21, wherein the last said means comprises an upper transverse wall portion integral with said unit and wherein the tank from region is open;

said front region peripheral to the from opening of the tank being adapted for a gasketed scaling to the back of a said bowl to serve as a tank front wall.

28. The unit of claim 27, wherein to provide the said means connecting the tank to the water jetting opening, the front face of said unit includes an integrally formed forwardly open channel running from the tank bottom region to communicate with said water jetting opening;

said front face adapted to completing closure of the channel by the back of a said bowl gasketed to said channel.

29. The combination of claim 21, wherein said ascending leg slants rearwardly upwardly to integrally merge into a horizontal rearward extension affording said discharge opening connection whereby said unit is adapted to function in a combination with a said bowl as a blowout type bowl.

30. The combination of claim 29, with said rearward extension adapted for a threaded connection to said soil line.

31. The combination of claim 30, wherein said rearward extension is provided with a lateral opening optionally useable as a plugged cleanout or as a connection for drainage of other sanitary fixtures.

32. The combination of claim 21, wherein the upper end of said ascending leg integrally merges through a bend into a descending leg,

said descending leg in turn integrally merging through a bend into a horizontal rearward extension affording said discharge opening, whereby said unit is adapted to serve in a combination with a said bowl as a syphon jet type installation.

33. For use in a compact water closet installation served by a soil pipe and flush water supply behind a closet mounting wall, a bowl fixture lacking both outlet trap and flushing water reservoir structures,

said bowl having an outlet from the bowl bottom region opening horizontally directly through the bowl back adapted to be sealed to conduit means through the wall to said soil pipe,

a flushing water inlet through the top region of the bowl back adapted to be connected to said flush water supply;

34. The bowl of claim 33 wherein said flushing water inlet comprises an inlet stem tube for s aid nozzle projecting through and secured sealed to the bowl back by a gasket and external nut.

35. The bowl of claim 34 provided at each side of the back with a vertically spaced pair of studs extending rearwardly from blind bottom-tapped holes in the back of the bowl for securing the bowl to within-the-wall carrier means; said back adapted to engage said wall in a manner rendering said studs inaccessible from the wall front. 

1. For a vandal-proof or security type installation of water closet drained by a soil line behind a wall, the combination including: a bowl having an outlet opening from the bowl bottom region directly through the bowl back and a flushing water inlet through the top region of the bowl back; a flushing reservoir tank and trap unit integrally comprising an ascending trap leg with a bottom inlet end opening at the lower front region of the unit, a discharge opening through an integral discharge connection at the back of the unit for a soil line with the upper end of the ascending leg in discharge communication with said discharge opening, a tank over said ascending trap leg, a formation providing a water jetting opening into the ascending leg proximate to the bottom inlet end thereof and aimed generally in the upward direction of the leg for directing water into water standing in the leg to induce evacuaTion from the bowl up the leg, and a water supply connection formation into the tank for connection to a flush valve controlled water supply; means connecting said tank to the water jetting opening; means sealing said bowl outlet to the trap leg inlet end opening; means connecting said flushing water inlet in water communicating relation to said tank; and means providing a top wall for said tank.
 2. The combination of claim 1, with the means connecting the tank to the water jetting opening comprising a passage cast integrally in said unit from the tank to the jetting opening.
 3. The combination of claim 1, wherein said unit is cast with the tank open at the top, and a separate said top wall is gasketed and secured on the top of the unit.
 4. The combination of claim 3 including a front wall portion of said tank integral with said unit having an apertured formation in its top region and a gasket interposed between said apertured formation and the flushing water inlet region of the bowl back, as the means connecting the tank and flushing water inlet.
 5. The combination of claim 4, including a flushing water diverter tube within the tank connected to said apertured formation providing a water passage from its bottom end near the bottom region of the tank to said flushing water inlet.
 6. The combination of claim 5 including an air relief within the tank connecting the top region of the tank to said trap leg.
 7. The combination of claim 1, wherein the last said means comprises an upper transverse wall portion integral with said unit and wherein the tank front region is open; the back of said bowl unit being gasketed to the periphery of the open front region of the tank to serve as a tank front wall.
 8. The combination of claim 7, wherein to provide the said means connecting the tank to the water jetting opening, the front face of said unit includes an integrally formed forwardly open channel running from the bottom region of said tank to communicate with said water jetting opening, and the back of said bowl is gasketed to said channel.
 9. The combination of claim 1, wherein said ascending leg slants rearwardly upwardly to integrally merge into a horizontal rearward extension affording said integral discharge connection whereby said combination is adapted to function as a blowout type bowl installation.
 10. The combination of claim 9, with said rearward extension threaded for connection by threaded means to said soil line.
 11. The combination of claim 10, wherein said rearward extension is provided with a lateral opening optionally useable as a plugged cleanout or as a connection for drainage of other sanitary fixtures.
 12. The combination of claim 1, wherein: the upper end of said ascending leg integrally merges through a bend into a descending leg, said descending leg in turn integrally merging through a bend into a horizontal rearward extension affording said integral discharge connection, whereby said combination is adapted to serve as a syphon jet type bowl installation.
 13. The combination of claim 12 with said rearward extension threaded for connection by threaded means to said soil line.
 14. The combination of claim 13 wherein said rearward extension is provided with a lateral opening optionally useable as a plugged cleanout or as a connection for drainage of other sanitary fixtures.
 15. The combination of claim 1 wherein: the top opening of the bowl is rimmed by a substantially continuous circumferential inward lip, the bowl interior surface ascending toward said lip terminates at a substantially circumferentially continuous flushing water distributing channel beneath said lip; and said flushing water inlet opens through the bowl back into a diverter nozzle centrally disposed in the rear portion of said channel directing water both directly downwardly over a back portion of the bowl interior and bilaterally into said channel to be distributed over the remaining portion of the bowl interior surface.
 16. The combination of claim 15 wherein said flush water inlet includes a tubular inlet stem for said nozzle projecting through and secured sealed to the bowl back.
 17. The combination of claim 16 wherein said unit is provided on each side with a vertically spaced pair of integral lateral lugs, and the bowl is provided with correspondingly spaced studs extending rearwardly from the back of the bowl to engage in said lugs for securing the bowl and unit together.
 18. The combination of claim 17, further including a shroud carrier adapted to be incorporated in a building wall on and through which the said bowl is to be installed and connected; said shroud carrier comprising: a rigid frame of size to receive therein said tank and trap unit with the front face of the unit disposed proximate to the front face of the wall, externally projecting anchoring elements engageable with surrounding wall structure for anchoring of the shroud carrier, and internally projecting elements to receive said studs projecting through the lateral lugs of said unit; whereby, with securing nuts on said studs, said bowl and unit are secured to each other and to the shroud carrier and by the latter to said wall.
 19. The combination of claim 1, further including a shroud carrier adapted to be incorporated in a building wall on and through which the said bowl is to be installed and connected to a soil line; said bowl having a plurality of mounting fastener engaging formations on the back face thereof; said unit having projecting lugs each adapted to receive therethrough a respective said fastener, said shroud carrier comprising a rigid frame of size to receive therein said tank and trap unit with the front face of the unit disposed proximate to the front face of the wall, externally projecting elements engageable with surrounding wall structure for securement of the shroud carrier and integrally projecting apertured elements to receive a respective said fastener projecting through a respective said lug; and mounting-fasteners engaging said bowl formations, lugs and elements whereby said bowl and unit are secured to each other and to the shroud carrier and by the latter to said wall.
 20. The combination of claim 19, wherein said mounting fasteners comprise respective studs threadedly engaged in tapped said formations and clamping nuts on the respective studs bearing on said elements.
 21. For use in a compact water closet installation served by a soil line behind a closet mounting wall and wherein there is to be used a water closet bowl fixture lacking both trap and flushing reservoir structures, a flushing reservoir tank and trap unit integrally comprising: an ascending trap leg with a bottom inlet end opening at the lower front region of the unit adapted to a sealed connection with the outlet of an untrapped bowl fixture, a discharge opening connection formation at the back of the unit with which the upper end of the ascending leg is in discharge communication for a discharge connection to said soil line, a tank over said ascending trap leg, a formation providing a water jetting opening into the ascending leg proximate to the bottom inlet end and aimed generally in the ascending direction of the leg for directing a bowl evacuation-inducing water jet into water standing in the leg, and a supply connection inlet formation into the tank for connection to a flush water supply; said unit further including means connecting said tank to said water jetting opening, a flushing water outlet from said tank through the front of said unit adapted for a water communicating connection at the back of said bowl fixture to supply flushing water to a flushing rim in the bowl, and means providing a top wall for said tank.
 22. The unit of claim 21, with the means connecting the tank to the water jetting opening comprising a passage from the tank to the jetting opening cast inteGrally in said unit.
 23. The unit of claim 21, wherein said unit is cast with the tank open at the top, and said top wall is provided by a gasketed cover secured on the top of the unit.
 24. The unit of claim 23 including a front wall portion of said tank integral with said unit having an apertured formation in its top region as said flushing water outlet.
 25. The unit of claim 24, including within the tank a flushing water diverter tube connected to said apertured formation providing a water passage from the bottom region of the tank to said flushing water outlet.
 26. The unit of claim 25 including an air vent tube within the tank connecting the top region of the tank to said trap leg.
 27. The unit of claim 21, wherein the last said means comprises an upper transverse wall portion integral with said unit and wherein the tank front region is open; said front region peripheral to the front opening of the tank being adapted for a gasketed sealing to the back of a said bowl to serve as a tank front wall.
 28. The unit of claim 27, wherein to provide the said means connecting the tank to the water jetting opening, the front face of said unit includes an integrally formed forwardly open channel running from the tank bottom region to communicate with said water jetting opening; said front face adapted to completing closure of the channel by the back of a said bowl gasketed to said channel.
 29. The combination of claim 21, wherein said ascending leg slants rearwardly upwardly to integrally merge into a horizontal rearward extension affording said discharge opening connection whereby said unit is adapted to function in a combination with a said bowl as a blowout type bowl.
 30. The combination of claim 29, with said rearward extension adapted for a threaded connection to said soil line.
 31. The combination of claim 30, wherein said rearward extension is provided with a lateral opening optionally useable as a plugged cleanout or as a connection for drainage of other sanitary fixtures.
 32. The combination of claim 21, wherein the upper end of said ascending leg integrally merges through a bend into a descending leg, said descending leg in turn integrally merging through a bend into a horizontal rearward extension affording said discharge opening, whereby said unit is adapted to serve in a combination with a said bowl as a syphon jet type installation.
 33. For use in a compact water closet installation served by a soil pipe and flush water supply behind a closet mounting wall, a bowl fixture lacking both outlet trap and flushing water reservoir structures, said bowl having an outlet from the bowl bottom region opening horizontally directly through the bowl back adapted to be sealed to conduit means through the wall to said soil pipe, a flushing water inlet through the top region of the bowl back adapted to be connected to said flush water supply; the top opening of the bowl being rimmed by a substantially continuous circumferential lip forming a seat, the bowl interior surface ascending toward and terminating at a substantially circumferentially continuous flushing water distributing channel beneath said lip; and said flushing water inlet opening through the bowl back into a diverter nozzle centrally disposed in the rear portion of said channel directing water both directly downwardly over a back portion of the bowl interior and bilaterally into said channel to be distributed over the remaining portion of the bowl interior surface.
 34. The bowl of claim 33 wherein said flushing water inlet comprises an inlet stem tube for s aid nozzle projecting through and secured sealed to the bowl back by a gasket and external nut.
 35. The bowl of claim 34 provided at each side of the back with a vertically spaced pair of studs extending rearwardly from blind bottom-tapped holes in the back of the bowl for securing the bowl to within-the-wall carrier means; said back adapted to engage said wall in a manner renderiNg said studs inaccessible from the wall front. 